Method of treating packs.



PATENTED DEC. 24, .1907.

O. W. BRAY. METHOD OF TREATING PACKS.

APPLICATION FILED MAR. 1e,v 1907.

2 SHEETSSHEET l.

INVENTOB WITNESSES PATENTED DEC. 24, 1907. 0. w. BRAY.

I METHOD OF TREATING PACKS.

APPLICATION FILED MAR. 18. 1907.

2 SHEETSSHEBT 2'.

M Q Q G O m iinm- K lm .s. E k k mmflji I :C fl

WITNESSES entrain snares repairer canine CHARLES W. BRAY, OF PITTSBURG,PENNSYLVANIA, ASSIGNGR'TQ MERICAN SHEET PLATE COMPANY, OF PITTSBURG, PENN SYLVANIA, A CORPORATION OF NEW JERSEY;

' METHOD OF TREATING PACKS.

no. waves.

Specification of Letters Patent.

Batented nee. ass? To all whom it may concern:

Be it known that I, CHARLES W. BR-AY, of Pittsburg, Allegheny county,Pennsylvania, have invented a new-and useful Method of Treating Packs,of which the following is a full, clear, and exact description,reference ciallyvby' What'is known as the continuous;

millsystem, wherein the ackspass through successive sets of rolls,diculty-has been experienced in excessive stickingof the'sheets of thepack causing a considerable. loss in whic cannot be pulled apart.

My invention s designed toreduce this difliculty of sticking of thepacks, and it consists in ap lying a cooling fluid to one or both facesof t elheated pack. The-step ispref erably applied between successiverolling op:

erations, thou h it maybe applied at any derough the process while thesirable time t pack'is heated,

In the drawings, in'which I show one form of apparatu'sfor carrying outmy invention,

2,2 and 3, 3 indicate successive sets of rolls of' a. tandem mill forrolling sheets. Between thesesets of rolls Ishow a chain table havinginner angled bar rests 4, 4, and outer adjustable side guides 5, 5; -fBetween'the supports 1 and guides 4e and 5' are provided the rollerchains 6 having rollers 7, which project above the level of the sup orts4 and move over the end sprocket whegl wheels are shown as mounteduponshafts 9 carried in bearings 10 and 11, ofwhich the bearing- 11 is shownas adjustable to regulate thetension of the chains. These bearings areshown as mounted ;in' side casings 12,

whichImay rest 11 on suitable transverse supports. The sha t 9 may bedriven b a sprocket wheel 13 and chain le'e'xten 'ng from a-driven shaft15. W v a i In order to a ply the cooling fluid to the pack, I prefera1y employtransverse spray vpipes 16 leading from a supply pipe 17lliiese pipes are preferably periorated on upon the'other.

by reason of torn or injured sheets tem erature.

apparent to thoseskilled in the art.

their lower sides, and spray streams ef'water upon-the top of the packsas it is fed along I also preferably use overthe chain table.similar'pipes 18 beneath chains, these ipes having upper perforations tospray the ower face of the pack.

The-action of the cooling fluid or liquid is to suddenly chill the outerplate or'portions thereof, and thus contract it relative to. the next.plate, causing a movement of one plate This loosens the plates andlargel prevents their sticking while enabling the pate tobe fed along.The operation is thus carried out without any delay or complication inthe apparatus other than themere addition of ipes for supplying thecooling liquid 'or fluid In carrying' out the process,

the hot pack passes through the reducing rolls 2, and-as it passes overthe chaintable it is sprayed on the top and bottom, and the sheets thusloosened and drawn over each other. The pack thus feeds forwardly intothe next reducing pair of rolls 3,3, where.

a further reduction maybe made as the amount of water a plied is'preferably not sufficient to chill -t pack below a rolling T eadvantages of my invention will fie T e application of cooling ,.fluidcauses unequal expansion and contraction of the various plates or sheetsof the pack, thus takin ad-- vantage of natural forces to loosen the seets from each other. 4

The'p'roces's may be used in connection with the 'Inechanical opener. or.without it; the fluid used may be either a gaseous fluid such aschilled air, or a liquid such as water, and many changes ma he made inthe form and 'arran emant of t e apparatus without departing om myinvention. s'8, 8. vThese sprocket 1. The method ofopening or looseningthe I sheets or plates of a packin which the said "sheets orplates sticktogether, which consists in applying ,a cooling fluid to the pack whileheated; substantially as described. 2'. The methodfof loosening sheetsor plates of a pack in which the said sheets or plates stick togetherwhichconsists feeds mg the pack forwardly while heated, and at the sametime applying a cooling fluid thereto; substantially as described- 3.The method of opening or loosenin sheets or piates .of a pack, in whichsai f are sheets or plates stick together, which consists I method whichconsists in rolling the heated in a p1 a coolin ,fluid to the to andbottom fac els %f the pa k While heated substantially as described.

' 5 4:. The method of opening or loosening the sheets or plates of apack in which the said sheets or plates stick together, which consistsin applying separate streams of cooling fluid.

to the pack while heated; substantially as 10 described.

'5. In the manufacture of. sheet metal, the

pack, and then subjecting said heated pack to the action of a coolingfluid, thereby loosening the sheets of the-pack from each other; 15

substantially as described. I a In testimony whereof, I have hereuntoset my hand. V

C. W. BRAY. Witnesses:

GEO. B'. BL MING, .H. M. CORWIN.

